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空压机排气量与什么有关呢?
Time:2018-06-19 14:34:58       来源:http://www.jnkbjx.com/      

一、泄漏:转子之间、转子与外壳之间在工作运转时都会有间隙,并非直接接触的,所以就会发生气体泄漏。压力升高后的气体通过间隙向吸气管道及正在吸气的啮槽泄漏时,会导致排气量减少。因此要让泄露量最大化的少,在从动转子的齿顶做有密封齿,主动转子的齿根开有密封槽,端面加工环状或条状的密封齿。但是万一密封线磨损,泄漏量也会增加,排气量减少。

Leakage: there is a gap between the rotor, the rotor and the shell when it is working and running. It is not a direct contact, so gas leakage will occur. When the pressure increases, the gas will leak to the suction pipe and the suction grooved slot through the gap. Therefore, to minimize the amount of leakage, a sealing tooth is made on the top of the driven rotor, the root of the active rotor has a sealing groove, and the end of the rotor has a ring or strip seal. However, if the sealing line is worn, the leakage will also increase and the exhaust volume will decrease.
二、吸气状态:螺杆式压缩机是容积型压缩机,吸气体积不变。当吸气温度升高,或吸气管路阻力过大而让吸入压力降低时,气体的密度减小,相应地会减少气体排气量。
Two, suction state: screw compressor is a volume compressor, suction volume unchanged. When the suction temperature increases or the suction line resistance is too large and the suction pressure decreases, the density of the gas decreases, which reduces the gas displacement accordingly.
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三、冷却效果:气体在被压缩时温度便会升高,转子和机壳的温度也会随之升高。在吸气过程中,气体会受到转子和机壳的加热而膨胀,减少吸量。空气压缩机的转子有时候会采用油冷却,机壳用水冷却,主要的原因是让温度降下来。如果冷却性差,温度就会升高,排气量减少。
Three, cooling effect: when the gas is compressed, the temperature will rise, and the temperature of the rotor and the shell will also rise. During the suction process, the gas is expanded by the heating of the rotor and the shell, reducing the suction. Sometimes the rotor of the air compressor is cooled by oil, and the shell is cooled by water. The main reason is that the temperature drops. If the cooling capacity is poor, the temperature will increase and the exhaust volume will decrease.
四、转速:螺杆压缩机的排气量与转速成正比。转速会随着随电网的电压、频率而变化。当电压降低(对异步电动机)或频率降低时,转速将下降,使气量减少。
Four, rotate speed: the displacement of the screw compressor is directly proportional to the speed. The speed will vary with the voltage and frequency of the grid. When the voltage is reduced (asynchronous motor) or the frequency is reduced, the speed will decrease and the volume of gas will be reduced.
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